#ifndef _SBRIDGE_H
#define _SBRIDGE_H

  /** All of the Salt Bridges are calculated by WHAT IF.
      ( A salt-bridge is defined as a basic nitrogen and an acidic oxygen being 
        'nera' to each other. 'Near' has a default of 4.5 Angstroms between atom 
	centres, but can be changed when WHAT IF prompts you for it.)

	\ingroup Bond
  */


struct sbridge {
 
  char  aa1name[3];
  int   aa1number;
  char  aa1atom[3];
  char  aa1chain;
  char  aa2name[3];
  int   aa2number;
  char  aa2atom[3];
  char  aa2chain;
  float distance; // distance between donor and acceptor atom
};
  
#endif
